Edge setting and burnishing machine



0. R. ANGELL. EDGE SETTING AND BURNIS HING MACHINE. APPLICATION FILED JUNES, 19l8.

1,395,787. Patented Nov. 1, 1921.

INVENTOR WITNESS ATTORNEY same staresrarest time.

OTIS R. ANGELL, 0F HAVERHILL, MASSACHUSETTS, ASSIGNQR TO HAlVIEL SHOE MACHINERY COMEANY, A GQBPOBATION 0F EJIASSACHUSETTS.

EDGE sn'r'rme Ann nunnisnine MACHINE.

nesaaev.

To all whom it may concern:

Be it known that I, OTIS R. AN'GELL, a citizen of the United States, residing at l-laverhill, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Edge Setting and Burnishing Machines, of which the following is a specification, reference belnghad vided with a knurled wheel adapted to engage the upper surface of the welt during the burnishing. operation for imparting thereto the desired beaded finish.

While burnishing irons provided with eading wheels such as above described have long been known in the art, it has been found in practice that many such devices fail to perform their intended function in an entirely satisfactory manner, principally by reason of the fact that the operating face of such a wheel lies ina plane substantially at right angles to the burnishing surface of the iron, theresult being that pressure of the work against the iron for securing the desired action of the latter fails to cause any pressure of the wheel against the 1welt such as isnecessary to impart a beaded finish to the latter. I

This invention seeks to overcome the above noted imperfections in operation of prior devices by so mounting the iron and the wheel carried thereby that the pressure of the wheel upon the welt surface shall vary proportionally to the pressure of the sole edge against the burnishing face of the iron.

The invention thus contemplates the pro vision ofa burnishing iron having associated therewith a movable support upon which is mounted the heading wheel, the parts being so relatively arranged that variations in pressure of the work against the iron causes a corresponding movement of said support and the wheel carried thereby.

Specification of Letters latent.

Application fiiee-i' nec, 1918 serial No. 238,570.

ratemea Nov. 1, rear.

The invention further consists in providing a burnishing iron which is mounted for movement in a direction at right angles to the plane of its operating face, Wlilll'fl pivotally mounted bell-crank lever carrylng upon one arm a heading wheel of suitable form and having its opposite end arranged to contact with a fixed stop member, movement of the iron as a whole thus-serving toproduce a swinging of the bell-crank lever and of the wheel carried thereby.

Otherfobjccts and advantages of the pres ent invention, together with novel and desirable details of construction will be specifically described in the accompanying specification and more particularly pointed out in the claims, referencebeing had to the annexed drawing for a full disclosure of a preferred embodiment thereof and in which,-

i igure 1 is a side elevation, partly in section, showing the iron and the wheelco-ntrolling mechanism, and

Fig. 2 is a front elevation of the same iron, certain parts being omitted for clearness of illustration.

1 is a vibratory support such as is com monly used for carrying the burnishing tool employed in edge setting machines of this type. This support is provided at 2 with a cylindrical spindleadapted for en-- gagement'with a socket 5 formed in a sleeve tintegral with the block 8 which forms theburnishing iron proper, this iron hav ing a burnishing surface 6 formed upon the lower face thereof; 7 is a spring clip having mounted upon its lower end a roller 8 adapted for engagement with a shallow notch 9 formed in the forward face of the sleeve portion 4 of the iron, the spring clip being held in rigid engagement with the support 1 by means of a collar 10 and set screw 11, the latter having screw threaded.

engagement with a suitable openingjin the support 1. supporting and holding the iron. are all old and well known in the art, and need no further description.

3 is a slot of key hole form cut in the front face of the block 3 and having a nar- The above arrangements for f row upper portion and an enlarged lower portion, the latter extending into the burnishing face 6. Pivoted for swinging movement within said slot upon a transversely extending pin 13 is a bell-crank lever 12, the arms 14 and 15 of said lever extending forwardly in substantially parallel relation, the arm 15 being the lon er, however, of the two. Pivoted upon the extremity of the arm 14, as by means of a pin 16 or other suitable device, is a rotary beading wheel 17 said wheel being provided with a bevel edge 18 which is knurled or corrugated for producing the desired finish upon the surface of the welt.

The outer extremity of the arm 15 of the bell-crank 12 is adapted for engagement at its upper surface with the depending extremity of a stop member 19,-the latter being held in adjustably fixed position by passing through a suitable opening in the collar 10 wherein it is held by means of a set screw 20. As will be noted from inspection .of Fig. 1 the socket 5 is of greater depth than the length of the spindle 2, and by reason of the fact that the slot 9, in which the roller 8 rests, is shallow, the iron is permitted to have a slight vertical movement under pressure of the work against the burnishing surface 6 thereof, such movement being limited by engagement of the top surface of the sleeve 4 with the shoulder 21 formed at the junction of the support 1 with the spindle 2, the parts, however, normally resting in the position shown in Fig. 1 in which the roller 8 is at the deepest part of the notch 9.

The operation of the device is as follows,-Upon engagement of the edge of the shoe with the burnishing surface 6 and upon application of pressure to the shoe to secure the desired burnishing action, the iron tends to move slightly upward upon the spindle 2. In so moving upward the bell-crank lever 12 as a whole is also moved upward, but by reason of engagement of the lever arm 15 with the stop member 9, the arm 15 will be caused toswing downward to a slight extent, thereby also swinging the arm 14 downward and with it the beading wheel 17. This movement of the beading wheel tends to cramp or pinch the same against the welt surface, the edge of the sole opposite the welt resting against the usual guard portion 22 of the iron, and thus a considerable pressure may be brought against the welt by the beading wheel to force the corrugations of the latter into the surface thereof. The above action insures the proper heading of the welt under all conditions of employment of the device, and secures much greater uniformity in operation than has been heretofore produced when it has been attempted to perform the beading and burnishing operations simultaneously, 7

-Having thus nowdescribed the invention with a preferred embodiment thereof and 1 the inode'of operation of the same what I claim as my invention and desire to secure eration upon the work, and means acting to press one of said elements into contact with the work with a pressure increasing as that of the work against the other of said elements increases.

3. In an edge setting machine, in combination, an edge setting tool comprising a burnishing element and a heading element, said elements being arranged for relative movement, and meanswhereby pressure of the work against said burnishing element produces a proportional pressure between said beading element and the work.

4. In a shoe machine, in combination, an edge-finishing tool comprising a burnishing surface and a beading wheel mounted for bodily movement with respect to saidfsurface, and means for determining the relative positions of said surface and wheel in accordance with the pressure of the work against said surface.

5. In a shoe machine, in combination, an edge-finishing tool comprising a member providing a burnishing face, a lever pivoted upon said member and having a beading wheel carried thereby for movement toward and from said face, and means for varying the relative positions of said member and lever in accordance with variations in pressure of the work against said surface.

6. In an edge setting machine, in combination, an edge iron having a burnishing face, means for supporting said iron for movement under pressure of the work in a direction perpendicular to said face,'a beading wheel mounted for bodily movement with respect to said iron, and means whereby movement of the iron under pressure of the work produces a corresponding relative movement of said iron and wheel.

7. In an edge setting machine, in combinasure of the Work serves to move said Wheel relatively to said burnishing face.

8. A shoe edge-finishing tool comprising a block provided With a burnishing surface upon one of its facesand having a slot formed in another face thereof, a lever pivoted for angular movement Within said slot and aboutan axis located at a point removed from said surface, and a heading Wheel carried by said lever. I

In testimony whereof, I have signed my name to this specification.

OTIS R. ANGELL. 

